William m



`(No Model.)

W. M. MIXER.

STILL.

No. 591,138. Patented Oct. 5,1897.

XW @61M ATTORNEY.

v NITED c STATES PATENT1 OFFICE.

wILLIAM M. MIxER, oENEw YORK, N. Y., AssIeNoR To WARREN E. rIUroIIINsoN, TRUSTEE,A or sAME PLACE.

STILL.

SPECIFICATION forming part of Letters Patent No. 591,138, dated October 5, 1897.

Application filed December 1896.` Serial No. 615,239. (No model.)

To all whom it may concern:-

Be it known that I, WILLIAM M. MIXER, of New York, in the county and State of New York, have invented certain new and useful Improvements in Stills, of which the following is a full, clear, and exact. description.

My invention relates to improvements in stills; and the object of my invention is to produce a still which can be used for distilling various liquors, but which is especially adapted for use in connection with refrigerating-machines to distil out ammonia-gas from strong aqua-ammonia and leave the usual weak liquor.

The chief object of my invention is to construct a still of this kind in a practical and inexpensive way and in such a manner that it can be easily heated, and particularly to arrange a series ofA deflectors or baffle-plates in such a way that the indowing liquor will be forced to travel a circuitous route downward through the still and be finally subdivided, so as to expose the film or particles to the action of the heat, thereby causing the still to work rapidly and efficiently.

Another object of my invention is to provide an easy and inexpensive means of sup-i porting the aforesaid baffle-plates or deilectors and combine in this support a Siphon-pipe through which the weak liquor in the still may be withdrawn. .i

heating-pipes in the still. Fig. 3 isa plan view of the spider which steadies the heating-pipes. Fig. lis aplan View of one of the larger deflectors or bathe-plates, and Fig. 5 is a similar view of one of the smaller deflectors or baffle-plates. 4

The still has the usual elongated shell 10, which is of the ordinary construction, and

Fig. 2 is a broken detail sec#l tional view of one of the internal steam The heating apparatus occupies the lower part of the still and comprises a series of vertical pipes 17, which are relatively large in cross-section and which extend upward from the bottom12, these pipes each containing an internal steam-pipe 18, which extends upward nearly to the top of the pipe 17 and connects with the steam-chamber 13. Sufficient space is left around each pipe 18 to permit the condensed steam to drain off into the space 15 and so out through the vent 15a. The circulation and heating of the pipes is better ifithe outlet at the top of each pipe 18 is reduced, as shown at 19 in` Fig. 2. This reduction in the top of the pipes 18 causes an even distribution of heat. If the pipes are not reduced at the top, the steam entering the chamber 13 passes quickly up through the pipes 18 on the side nearest the inlet 14, while the pipes on the farther sideof the still are comparatively cool, but when the vents are reduced the steam cannot escape fast enough through lthe first-mentioned pipes, and so it passes up through all the pipes, and hence the still is evenly heated. The tops of the pipes 17 are stayed by the spider 20,which is fastened transversely in the shell 10 and has a series of sockets `21 to receive the connections or plugs at the top of the pipes 17 The arrangement of the heating-pipes is not new, except in the particular combination expressed.

The strong aqua-ammoniafor other matter to be distilled is admitted at the top through a pipe 22, which delivers on the upper of a series of delectors 28 and 27, which are regun larly spaced and placed alternately in the still, as will be more specifically described presently. Each defiector 23 is of a diameter to just fit closely in the shell 10, and it has IOO a central opening 24, through which the liquor passes in its downward course and through which the vapor rises, this opening being surrounded by a rim 25, which is lower than the outer rim of the detlector and which is serrated, as shown, so that the liquor, instead of passing over at some one point in a stream, is subdivided into numerous parts and trickles down through each serration in a small body, so as to be subjected to the iniiuence of the heat arising in the still. Each delector 23 is also provided with a central spider 26, which connects with the supporting-pipe 29 of the still and so braces the deector. This arrangement makes a cheap construction, and the deiiectors are braced by the pipe 29, while the latter is also braced by the deflectors.

The liquor which passes over the rim 25 of a detlector 23 falls into a deflector 27, which is arranged a little below the deiiector 23 and which is closed at the bottom, except for the opening 28, which fits snugly on the supporting-pipe 29. The delector 27 is of less diameter than the deiiector 23, but of greater di ameter than the opening 24 in the deiiector 23, and the deilector 27 has an outer serrated rim 27a, through which the liquor passes in a subdivided condition and falls on the next delector 23 below. The pipe 29, which serves as a support for the delectors, also serves as an exhaust-pipe through which the weak liquor in the still may be siphoned out, and it connects with a central top opening 300i the still. The delectors are spaced on the pipe 29 by means of sleeves 3l, and nuts 32 are threaded on the pipe to maintain the sleeves. The vapor or gas distilled from the strong aqua-ammonia passes out through an opening 33 in the top of the still. It will be understood that any necessary number of deflectors 23 and 27 can be used, and by reference to Fig. l it will be seen that the alternate arrangement of the larger and smaller deiiectors causes the liquor which enters the still to pass' from the upper deiiector 23 to the next delector 27, from that to the second declaim as new and desire to secure by Letters Patent- I. The combinationwith the still, of the discharge-pipe extending centrally downward into the still, and alternating series of transverse deiiectors discharging one upon the other, the smaller deflectors being secured to the discharge-pipe, and the larger delectors being secured to the discharge-pipe and extending against the still-walls, the larger deiiectors being provided with central openings, substantially as described.

2. lThe herein-described still, comprising a shell having an internal heating apparatus at the bottom, a discharge-pipe extending from the top downward into the still, a series of transverse deflectors held within the still, the smaller of said deilectors being secured to the discharge-pipe, and the larger being secured to the discharge-pipe and arranged to engage the still-walls, an inlet delivering upon the upper delector, and a gas-outlet at the top of the still, substantially as described.

3. The combination with the still having dei'lecting apparatus therein as specified, of the heating apparatus, comprising a series of relatively large exterior pipes closed at the top, a series of internal pipes contained in the larger pipes, and provided with reduced vents, a steam-supply for the interior pipes, and an outlet for the exterior pipes, substantially as described.

WILLIAM M. MIXER. Witnesses:

W. B. IIUTcHINsoN, BERTHA DEYo. 

